Grumbacher's an American manufacturer of art materials. The company offers products for artists including oil, water-miscible oil, watercolor and acrylic paints, as well as brushes and painting media. It was founded in 1905 by Max Grumbacher and was a subsidiary of the Sanford L.P., a Newell Rubbermaid company, until September 2006. It's now owned by Chartpak, Inc., headquartered in Leeds, MA. Products Grumbacher markets both collegiate and professional grade artist products. The collegiate gr… (More on Grumbacher)